From: Greg KH <gregkh@linuxfoundation.org>
To: Josh Boyer <jwboyer@fedoraproject.org>
Cc: "Daniel Vetter" <daniel@ffwll.ch>,
"Bruno Prémont" <bonbons@linux-vserver.org>,
"Carbonated Beverage" <ramune@psychosnugglebunnies.net>,
"Intel Graphics Development" <intel-gfx@lists.freedesktop.org>,
"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>
Subject: Re: [Intel-gfx] 3.14.3 i915 dead display under X11
Date: Wed, 14 May 2014 13:06:03 -0700 [thread overview]
Message-ID: <20140514200603.GA32452@kroah.com> (raw)
In-Reply-To: <CA+5PVA57hWTE8XuQWzadh+Cyd0iB5Ne7SM60ZzAS=Nu-5-AtAA@mail.gmail.com>
On Wed, May 14, 2014 at 03:43:53PM -0400, Josh Boyer wrote:
> On Wed, May 14, 2014 at 3:33 PM, Greg KH <gregkh@linuxfoundation.org> wrote:
> > On Wed, May 14, 2014 at 09:19:32PM +0200, Daniel Vetter wrote:
> >> On Wed, May 14, 2014 at 08:47:38PM +0200, Bruno Prémont wrote:
> >> > CCing intel-gfx as otherwise it will probably not get seen by developers.
> >> >
> >> > On Sun, 11 May 2014 Carbonated Beverage <ramune@psychosnugglebunnies.net> wrote:
> >> > > Bisecting from 3.13.6 (good) to 3.14.3 (bad) ended up with...
> >> > >
> >> > > commit b35684b8fa94e04f55fd38bf672b737741d2f9e2
> >> > > Author: Jani Nikula <jani.nikula@intel.com>
> >> > > Date: Thu Nov 14 12:13:41 2013 +0200
> >> > >
> >> > > drm/i915: do full backlight setup at enable time
> >> > >
> >> > > We should now have all the information we need to do a full
> >> > > initialization of the backlight registers.
> >> > >
> >> > > v2: Keep QUIRK_NO_PCH_PWM_ENABLE for now (Imre).
> >> > >
> >> > > Signed-off-by: Jani Nikula <jani.nikula@intel.com>
> >> > > Reviewed-by: Imre Deak <imre.deak@intel.com>
> >> > > Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
> >> > >
> >> > > Which is in 3.12.0????
> >> > >
> >> > > I'm not sure how that came to be. Does that look right? What other
> >> > > information would be required to track this down?
> >>
> >> We've killed this again in 3.14 since we've hoped the backlight rework in
> >> there fixed it. For 3.15 we finally have the right fix - vbt has a bit
> >> telling us not to look at the integrated PWM for the panel.
> >>
> >> For 3.14 we will (again) resurrect the quirk because the vbt thing is a
> >> bit too risky an imo needs a full -rc cycle for testing. But that revert
> >> is currently stalled because Greg KH is travelling too much ;-)
> >>
> >> Cc'ing him to make sure that patch doesn't miss the next 3.14.x release.
> >
> > What specific patch are you wanting to make sure makes it in? I've been
>
> Subject: [PATCH for stable 3.14 only 0/1] drm/i915: restore
> QUIRK_NO_PCH_PWM_ENABLE
>
> > avoiding all of the drm patches so far for 3.14.y as it's an easy thing
> > to do, but I'll eventually have to start paying attention to them :)
>
> Jani has bugged you twice about it I think. You've said it's not lost
> both times. Third time is a charm?
Fine, I'll go apply it now...
next prev parent reply other threads:[~2014-05-14 20:06 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-12 3:10 3.14.3 i915 dead display under X11 Carbonated Beverage
2014-05-14 18:47 ` Bruno Prémont
2014-05-14 19:19 ` [Intel-gfx] " Daniel Vetter
2014-05-14 19:33 ` Greg KH
2014-05-14 19:43 ` Josh Boyer
2014-05-14 20:06 ` Greg KH [this message]
2014-05-14 20:19 ` Daniel Vetter
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